(19)

(11)

EP 2 076 655 A2

(12)

(88) Date of publication A3: 03.07.2008 (43) Date of publication: 08.07.2009 Bulletin 2009/28 (21) Application number: 07854307.1 (22) Date of filing: 23.10.2007

(51) International Patent Classification (IPC):  E21B 47/00(2006.01) (86) International application number: PCT/US2007/082174 (87) International publication number: WO 2008/051945 (02.05.2008 Gazette 2008/18)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 24.10.2006 US 862666 P (71) Applicant: AFL Telecommunications LLC Spartanburg, South Carolina 29304 (US)	(72) Inventor: HERBST, Brian Easley, South Carolina 29642 (US) (74) Representative: Driver, Virginia Rozanne et al Page White & Farrer Bedford House John Street London WC1N 2BF John Street London WC1N 2BF (GB)